In the beginning of the 1990’s, various fragmented information networks of the Internet were combined into one integrated network of systems. As a result, the commercial utilization of the Internet boomed, creating completely new business models and economic structures in the process. A...

Tight oligopolies are oligopolies the market characteristics of which facilitate the realisation of supranormal profits for a substantial period of time. We entangle the link between market structure and the possibility of welfare reducing behaviour by firms. A useful distinction can be made...

Pleas for a level playing field, for instance in international trade, are often not well-founded. This is because it is not exactly clear what a 'level playing field' means. But even if it would be clear what the plea would imply, a level playing field is not always desirable from an economic...